Besides the obvious advantage of enabling Bluetooth capabilities for your Home Assistant interface, an ESP32-powered proxy allows you to control and automate smart devices over a large area.

Using Bluetooth on a desktop computer is now such a seamless process; it’s something built-in and just works. Behind that ubiquity is a protocol layer called HCI, or Host Controller Interface… ...

Waveshare ESP32-H2-Zero is a tiny USB-C development board based on Espressif Systems' ESP32-H2 RISC-V SoC with Zigbee, Thread ...

The PCB holds an ESP32-PICO-D4 which is operating as a standard Bluetooth HID controller for maximum compatibility with modern systems.

But the flip side is huge: without shelling out many euros you’re getting an ESP32 kit with a touchscreen, SD storage, and Wi-Fi/Bluetooth backed by community knowledge and structured documentation.